S.M.S.L
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Pure power • King of detail • Infineon GaN output stage & TI PGA2311 precision volume
The SMSL PA400 is a next-generation power amplifier that leverages Infineon gallium nitride (GaN) power transistors running at an ultra-high switching frequency of ~1 MHz to deliver extraordinary speed, control, and low distortion across the entire audio band. A TI PGA2311 flagship volume IC provides precise channel tracking and smooth, accurate level control for truly faithful reproduction.
Create the “Golden Triangle” SMSL stack: PL200T CD transport → D400 PRO DAC → PA400 power amplifier. From bit-perfect readout to analog finesse to GaN muscle, it’s a complete flagship path from source to speakers.
| Amplifier Topology | Gallium Nitride (GaN) power stage, ~1 MHz switching |
|---|---|
| Volume Control | Texas Instruments PGA2311 precision volume IC |
| Inputs | Balanced XLR, Single-ended RCA, XLR Mono (bridge) |
| Input Sensitivity / Impedance | RCA: 0.96 Vrms / 22 kΩ • XLR: 2.1 Vrms / 22 kΩ |
| Output Power (Stereo) | 200 W ×2 @ 8 Ω |
| Output Power (Bridge-Mono) | 500 W ×1 @ 8 Ω (per unit) |
| THD+N | 0.003% |
| SNR | 115 dB |
| Channel Separation | 75 dB |
| Power Consumption | ~40 W (normal listening) |
| Standby Power | <0.5 W |
| Dimensions (W×H×D) | 254 × 47.7 × 242 mm |
| Weight | 2.58 kg (5.69 lb) |
Notes: Output power and performance may vary with mains voltage, speaker load and operating mode. Accessories may differ by region.
A new tariff system will take effect across all 27 EU member states starting 1 July 2026. The EU is abolishing the duty exemption for low-value parcels — all goods entering the EU will now be subject to customs duties, including a fixed duty of €3 per HS tariff code category for IOSS-declared goods under €150.
A handling surcharge of USD $5 has been applied to all standard shipments to EU countries on orders under $500. Orders over $500 qualify for free expedited shipping.
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In the event that a shipment is refused, undeliverable, or returned to sender, HiFiCat will process a refund to the original payment method. If a customer requests reshipment, a reshipment fee will apply. A restocking fee of up to 20% may also apply.
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💰 Shipping cost: $5.00 USD (orders $0–$500) | Free (orders $500+, via DHL Express)
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All taxes and duties are prepaid (DDP). 10–15 working days. Free standard shipping.
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